Arsenal have been steadily improving for the last three years as Mikel Arteta’s project has started to come together. However, over the last few weeks, some cracks have started to show. Arsenal are now three without a win in the Premier League, and they also lost to Inter Milan in the Champions League in midweek. Premier LeaguePremier LeaguePremier LeagueTo make matters worse, there’s also unrest behind the scenes, as Edu is set to leave Arsenal as the club’s Sporting Director. Arsenal were apparently left confused by Edu’s decision to leave, and writing in his column for Sky Sports, Paul Mers…